Fan Tray Power Cable Replacement - Sun Microsystems Sun Fire E25K Service Manual

6. Using a 3/16 inch nut driver, carefully remove the four (4) female jack screws (two
(2) per connector) holding the crossover cable connectors to the horizontal
connector bracket.
7. Reaching through the lower card guide assembly, remove the cable(s).
16.2.4.2 Installing the Power Crossover Cable
1. Install the new cable(s).
2. Secure the four (4) female jack screws (two per connector) holding the crossover
cable connectors to the horizontal connector bracket by using a 3/16 inch nut
driver.
3. Secure the four (4) (two per connector) jackscrews holding the 48 VDC power
cable assemblies (front and rear) to the two (2) power crossover cables.
4. Install the lower fan trays.
See Section 4.2.4, "Installing a Fan Tray" on page
5. Install the center system board components and their associated carrier plate
assemblies to both the front and the rear of the system previously removed to
enable access to the cables below the lower card guide assembly.
Review the board set carrier plate instructions for proper handling. See
"Inserting a Board Set Carrier Plate" on page
6. Install the honeycomb EMI Filter panel and air plenum cover and secure with the
twenty-two (22) M4x30 panhead screws.
7. Power on the system.
See Section 16.3, "Powering On the System" on page
16.2.5

Fan Tray Power Cable Replacement

16.2.5.1 Removing the Fan Tray Power Cable
Caution – Be sure you are properly grounded before you begin the hardware
removal and installation. There are four ground points on the system cabinet, two at
the front top left and top right, and two at the rear top left and top right.
4-5.
10-2.
16-20.
Chapter 16 Cable Replacement Procedures
Section 10.1,
16-13